![]() ![]() According to CRN, "The simplest and most effective way to address these concerns is for healthcare practitioners to alert patients to temporarily stop taking their biotin supplements before getting blood work." "The concerns raised by FDA are specifically directed to potential interference with certain lab tests," reads the statement from Duffy Mackay, N.D., CRN's senior vice president. CRN issued a statement in response to the FDA's warning, first clarifying that the FDA has not found health issues related to the biotin supplements themselves. This is also the advice from the Council for Responsible Nutrition (CRN), the largest trade group representing dietary supplements. For this reason, Burmeister suggests health providers ask patients whether they are taking biotin before administering any blood test. Lynn Burmeister, M.D., an endocrinologist at the University of Minnesota who has studied biotin's effects with Li, says it can be difficult to be sure if a particular blood test could be skewed by biotin intake. Those proteins are measured to detect many health conditions, according to the FDA. The reason that taking biotin supplements could lead to misdiagnosis is because biotin is also used in medical tests to bond with proteins in blood. "Depending on what kind of test, the consequences can even be deadly." "The risks can be quite severe," she notes. Li has been in communication with the FDA ever since, urging the agency to warn the public. Danni Li, Ph.D., director of clinical chemistry at the University of Minnesota Medical Center, released a study in 2009 that showed biotin supplements could interfere with the results of medical testing. The FDA's warning shines a light on an issue that researchers have been flagging for years. The agency said it has seen an uptick in the number of reported adverse events-including one death-related to the vitamin's interference with lab tests. But the Food and Drug Administration (FDA) recently warned that taking biotin supplements can alter results in a wide swath of medical tests, including ones for anemia, cancer, heart disease, pregnancy, and thyroid problems. Biotin supplements, sometimes referred to as vitamin B 7, have gained popularity with those seeking stronger, healthier hair, skin, and nails. ![]()
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